First Sebenza I ever held was a small 21...and not to rain on your parade, it really felt far too small in my hands. And my hands are not huge, perhaps a bit larger than normal....but I don't ever think I will see a small Sebenza in my collection. The Large 21/25....they are perfect fits. What I would give to see a Sebenza with a blade that is 4.5". That would be a dream come true.
But like others above have said, I went just over a week before I ordered my 2nd one...and it's in the mail. I was supposed to get it tomorrow, but it looks like I have to make it thru the weekend and wait until Monday for my "Starbenza". But hey, the small one might work for you....it does for a lot of other people. I carry a Spyderco Military for most purposes, but now I also carry a Sebenza...and I feel like a million bucks. lol